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Omidrop Africa

Your Reliable and Convenient Bulk Water Solution

Phone

0745426565

Email

info@omidrop.africa

Active · Kenya-Wide · Certified

Your Water Tank
Is Making You
Sick Right Now.

Professional water tank cleaning & disinfection across Kenya. We remove sludge, algae, and bacterial contamination from all tank types — for homes, schools, hospitals, and industries.

✓ KEBS-Compliant ✓ Certified Disinfection ✓ 4.9★ Rated Same-Day Nairobi Certificate Issued
🧼 Book Tank Cleaning 📞 Call for a Quote
6mo
Recommended cleaning interval for most tanks
4.9★
Average rating across 38+ verified jobs
50+
Towns served across Kenya
100%
Cleaning certificates on every job
6 steps
Drain → Desludge → Pressure Wash → Scrub → Disinfect → Certify. Every tank. Every time.
✓
WHO-Approved Disinfectants
✓
Certificate on Every Job
✓
All Tank Types
✓
Schools & Hospitals
✓
Same-Day Nairobi
✓
NEMA-Compliant Disposal
What You Need to Know First

What Are Professional Water Tank Cleaning Services in Kenya — and Why Is Your Tank Almost Certainly Contaminated Right Now?

Water tank cleaning services in Kenya are professional operations that physically remove accumulated sludge, sediment, algae, and microbial contamination from inside water storage tanks — then disinfect the internal surfaces to make the water safe for drinking, cooking, and institutional use. It is not something you can effectively do with a garden hose. It requires confined space access, specialist equipment, WHO-approved disinfectants, and a systematic six-step process.

⚠️ Health Alert: The World Health Organization and Kenya's Ministry of Health confirm that improperly maintained water storage tanks are a primary vector for cholera, typhoid, and waterborne gastroenteritis in East Africa. If your tank has not been professionally cleaned in the past 6 months, the water inside it is almost certainly contaminated — even if it looks clear.

Here's what most Kenyans don't know: a water tank that looks clean on the inside can still harbour lethal concentrations of E. coli, Salmonella typhi, and Legionella in its biofilm layers — invisible coatings of bacteria that build up on internal tank surfaces over time and release contamination into the water column with every refill.

At Omidrop Africa, our water tank cleaning service covers all tank types — overhead tanks, underground tanks, plastic tanks, concrete tanks, and stainless steel tanks — for homes, schools, hospitals, commercial buildings, and industrial facilities across Kenya's major towns. Every job ends with a formal cleaning and disinfection certificate that meets Kenya's health authority inspection requirements.

The question isn't whether your tank needs cleaning. It's how long it's been since the last time — and what's been growing in there since.

We operate across Nairobi, Mombasa, Kisumu, Nakuru, Eldoret, Thika, Machakos, Meru, Nyeri, Kericho, and 40+ other towns. Pricing is customised to your tank type, size, and condition. Email us at info@omidrop.africa or call +254 745 426 565 for a same-day quote.

Omidrop Africa technician cleaning an overhead water tank in Nairobi Kenya

An Omidrop Africa technician cleaning an overhead tank in Nairobi — our 6-step process eliminates sludge, biofilm, and bacterial contamination.

The Health Case

What Diseases Are Actually Living in Your Dirty Water Tank — and Why a Visual Check Tells You Nothing

An uncleaned water tank is not just "a bit unhygienic." It is an active disease incubation vessel. Here's exactly what grows inside tanks that haven't been professionally cleaned — and what it does to people.

🦠

Bacterial Contamination

E. coli, Salmonella typhi (typhoid), Vibrio cholerae (cholera), and Legionella pneumophila colonise tank walls and floor sediment. They form biofilms — protective layers that survive chlorination of the incoming supply and release contamination continuously into the stored water. This is the number one cause of household waterborne illness in Kenya.

🌿

Algae Buildup

Green and black algae grow in tanks exposed to any light — including UV penetration through plastic tanks. Algae depletes dissolved oxygen, creates a foul taste and odour, and produces toxins (cyanotoxins from blue-green algae) that cause nausea, liver damage, and neurological symptoms even in small concentrations. Standard water treatment does not remove algal toxins.

🏔️

Sludge & Sediment

Every litre of water supplied by a borehole, municipal source, or delivery tanker carries suspended particles that settle over time into a dark, organic sludge layer at the tank base. This sediment is rich in organic material, heavy metals, and creates an anaerobic environment ideal for pathogen survival. You cannot see it in the tap water, but you are drinking it.

🧪

Chemical Accumulation

In concrete tanks especially, calcium deposits, rust (in steel tanks), and corrosion products accumulate on internal surfaces. These introduce heavy metals (iron, manganese, lead) and alter water pH — making water taste metallic or bitter and causing long-term health effects with sustained exposure. Professional cleaning removes these deposits before they leach into the water column.

Cleaned vs. Uncleaned Tank — What the Data Actually Shows

Based on water quality parameters measured before and after professional tank cleaning across multiple sites in Kenya.

Parameter✅ Professionally Cleaned❌ Not Cleaned (6+ months)Health Risk Level
E. coli presenceNegative (safe)Often positiveCritical
Sediment / SludgeFully removedPresent, accumulatingHigh
Algae growthEliminatedVisible or latentHigh
TurbidityClear — within WHO limitElevatedModerate–High
Water taste & odourNormalMetallic, earthy, or sulphurousModerate
Biofilm on surfacesMechanically removedEstablished, ongoing growthCritical
Chlorine residualMaintained post-cleanNeutralised by organic loadCritical
MoH complianceCertificate issuedNon-compliantInstitutional risk

Had your tank cleaned recently? If not — this is urgent.

Don't wait for a family member to fall ill or a health inspection to flag your facility. Contact us today for a same-day assessment and cleaning quote. We serve Nairobi, Mombasa, Kisumu, Nakuru, Eldoret, and 45+ other towns.

📧 info@omidrop.africa 📞 +254 745 426 565 💬 WhatsApp
Services We Offer

Which Type of Water Tank Do You Have in Kenya — and Are You Having It Cleaned the Right Way?

Different tank types require entirely different cleaning approaches. Using the wrong technique doesn't just clean poorly — it can damage the tank structure or introduce new contamination.

🏠

Overhead Tank Cleaning

Rooftop and elevated tanks for homes, apartments, and commercial buildings. We access the tank interior safely, drain residual water, physically scrub all internal surfaces, remove sludge and deposits, disinfect with food-grade chlorine, and refill. Certificate issued on completion. Common in Nairobi estate developments, Mombasa coastal buildings, and Kisumu city apartments.

Get overhead tank cleaning quote →
⬇️

Underground Tank Cleaning

Subterranean tanks used by estates, hospitals, schools, and commercial properties. These accumulate the heaviest sludge loads and are highest-risk for bacterial growth due to low light and static water conditions. Requires confined space entry equipment, proper ventilation, and specialist sludge pumping. We carry all of this as standard.

Get underground tank quote →
🧴

Plastic Tank Cleaning & Disinfection

Polyethylene and fibreglass tanks are the most common type in Kenyan households. They are vulnerable to algae growth (UV penetration through walls), biofilm buildup, and surface scaling. Our team uses materials and methods specific to plastic tank surfaces — no abrasives that create more surface area for future contamination.

Book plastic tank clean →
🏛️

Concrete & Steel Tank Cleaning

Institutional and industrial tanks are typically large-volume concrete or steel structures requiring power-washing equipment, rust treatment (steel tanks), calcium deposit removal (concrete), and specialist confined-space procedures. We handle tanks from 5,000 litres up to 200,000-litre institutional reservoirs.

Request industrial tank quote →
🚨

Emergency Tank Disinfection

Confirmed contamination event, cholera alert, or post-flood decontamination? Our emergency team responds to Nairobi and major towns on same-day or next-morning timelines. We perform accelerated drain-and-disinfect procedures and can issue an emergency health clearance certificate for institutional use.

📞 Call emergency line now →
📅

Scheduled Maintenance Plans

The most cost-effective way to manage tank hygiene is a recurring professional cleaning contract. We set up 3-monthly, 6-monthly, or annual plans for estates, schools, hospitals, and commercial buildings — so you never have to think about it, and the health risk never has the chance to develop.

Set up a maintenance plan →

Which Tank Type Do You Have — and What Does It Need?

Tank TypeCommon ContaminationCleaning MethodFrequencyCertificate
🏠 Overhead PlasticAlgae, biofilm, sedimentDrain, scrub (soft), chlorinateEvery 6 months✓ Yes
⬇️ Underground ConcreteSludge, bacteria, calciumConfined entry, power wash, chlorinateEvery 3–6 months✓ Yes
🔩 Steel / StainlessRust, biofilm, sedimentRust treatment, pressure wash, sanitizeEvery 6 months✓ Yes
🏛️ Large Concrete (Institution)Sludge, algae, bacterial bloomFull confined-space procedureEvery 3 months✓ Yes — MoH ready
🧴 FibreglassAlgae, surface biofilmSpecialist non-abrasive cleanEvery 6 months✓ Yes
🌊 Water Bowser / TankerContamination from previous loadsFull internal flush, chlorinateBefore each potable load✓ Yes
Our 6-Step Process

What Does a Professional Water Tank Cleaning Actually Involve — and Why Can't You Do This Yourself?

The process matters as much as the outcome. A tank that gets "cleaned" with a mop and bucket has not been properly cleaned. Here's what our certified technicians actually do — in sequence — on every single job.

  1. Full Drainage

    All residual water is pumped out completely. Partially cleaning a tank with standing water inside is ineffective and leaves contamination in place.

  2. Sludge Removal

    Accumulated sediment, organic sludge, and debris are manually removed from the tank floor using vacuum and scoop extraction. This is the step most informal cleaners skip.

  3. Pressure Washing

    Internal walls, floor, and lid surfaces are pressure-washed to break and dislodge biofilm, calcium deposits, and surface contamination before scrubbing begins.

  4. Manual Scrubbing

    Every internal surface is physically scrubbed using tank-appropriate brushes. Pressure washing alone cannot remove established biofilm — physical scrubbing is mandatory.

  5. Disinfection

    WHO-approved, food-grade sodium hypochlorite is applied at the correct concentration, left for the appropriate contact time, then flushed completely from the tank.

  6. Rinse & Certify

    The tank is thoroughly rinsed to remove all disinfectant residue. A residual chlorine check is performed, and a formal cleaning certificate is issued.

Omidrop Africa water tank cleaning process steps Kenya
Who We Serve

Schools Are the Highest-Risk Category — But We Clean for Everyone.

Tank contamination risk scales with usage intensity and the number of people drinking from a single storage system. A boarding school with 600 students sharing one poorly-maintained tank is an outbreak waiting to happen.

🏫

Boarding Schools & Universities

Kenya's Ministry of Health inspects school water storage facilities. We provide the full certificate schools need to pass inspections — and the clean that actually protects students. Book for your school →

🏥

Hospitals & Clinics

Healthcare facilities have zero tolerance for contaminated water. We work with public and private health facilities across Kenya, following infection control protocols and issuing certificates that meet Kenya's healthcare regulatory requirements.

🏢

Commercial Buildings & Offices

Office parks, shopping centres, and commercial properties in Nairobi, Mombasa, Kisumu, and Nakuru often manage large underground tanks with infrequent cleaning. We set up scheduled maintenance contracts that require zero admin effort on your part.

🏭

Factories & Industrial Plants

Industrial processes that use stored water for cooling, production, or employee welfare require documented tank hygiene. We clean large-capacity industrial tanks with confined space access equipment across Kenya's industrial corridors.

🏘️

Residential Estates & Apartments

Property managers in Nairobi, Kiambu, Ruiru, Machakos, and other urban areas manage communal tanks that serve dozens or hundreds of households. Our recurring plans remove the hygiene risk and the management burden simultaneously.

🏨

Hotels & Hospitality

A single guest illness traced to contaminated water can destroy a hotel's reputation and trigger regulatory action. Professional tank cleaning with certification is non-negotiable for any hospitality operation that takes food and beverage safety seriously.

🏠

Private Households

Families in Nairobi, Mombasa, Kisumu, Nakuru, and across Kenya who rely on overhead or underground tanks for daily water use. Six-monthly cleaning is the minimum — we make it simple, professional, and properly documented.

🏛️

Government & NGO Facilities

Government offices, county facilities, and NGO field stations often have large, infrequently serviced tanks. We carry the documentation and procedures required for government procurement and institutional compliance.

Pricing

How Much Does Water Tank Cleaning Cost in Kenya — and Why There's No Single Honest Price.

A 1,000-litre plastic overhead tank in Nairobi costs very different to clean than a 50,000-litre underground concrete tank in Kisumu that hasn't been touched in two years. Every quote we issue is specific to your actual situation.

🏠

Residential

Custom Quote

Based on tank size, type & condition

  • Overhead & rooftop tanks
  • Plastic tanks (all sizes)
  • 6-step cleaning process
  • WHO-approved disinfectant
  • Cleaning certificate issued
  • Same-day Nairobi available
Get Home Quote
Most Popular
🏫

Institutional & Commercial

Custom Quote

Schools, hospitals, offices & large buildings

  • Underground & concrete tanks
  • Confined space procedures
  • Recurring scheduled plans
  • MoH-ready certificate
  • Priority emergency response
  • Full procurement documentation
  • Multi-tank property contracts
Get Institutional Quote
🏭

Industrial & Large-Scale

Custom Quote

Factories, warehouses & high-capacity tanks

  • Steel, fibreglass & large concrete
  • High-capacity extraction equipment
  • Rust & deposit treatment
  • Compliance documentation
  • Recurring contract pricing
Get Industrial Quote

Request Your Custom Quote in Under 2 Minutes

Tell us your town, tank type, approximate size (litres), and last cleaning date. We'll quote you a specific price — no estimates, no surprises. Institutions can request formal procurement quotations for tendering.

📧 info@omidrop.africa 📞 +254 745 426 565 📦 Book Online
Coverage Area

Does Omidrop Africa Clean Tanks in Your Town? If You're Anywhere in Kenya, Almost Certainly Yes.

We operate professional water tank cleaning teams across 50+ towns in Kenya. Same-day service in Nairobi and major surrounding towns. All other major towns serviced within 24–48 hours.

Not on the list? Call us or email us — we may still reach your area, especially for institutional and commercial jobs.

Customer Feedback

4.9 Stars from 38 Verified Jobs — What Kenya's Schools, Hospitals and Homeowners Actually Say.

KO
★★★★★

"Our school tank hadn't been cleaned properly in years. When Omidrop opened it up, the amount of black sediment they removed was alarming. The Ministry of Health inspection two weeks later — we passed without a single issue, certificate in hand."

Mr. Kamau O.
Deputy Principal, boarding school, Nyeri
WN
★★★★★

"We had a confirmed E. coli positive from our lab test. Called Omidrop for emergency disinfection — they were on site the same afternoon. They documented the full procedure, conducted a post-disinfection check, and issued us a clearance certificate. Crisis handled professionally."

Dr. Waweru N.
Clinic Director, Nairobi
GM
★★★★★

"I manage 48 units in Kasarani. We put Omidrop on a 6-monthly plan for all three of our underground tanks. Since we started, zero water-related complaints from residents. The difference in resident satisfaction is noticeable."

Grace M.
Property Manager, Nairobi
AK
★★★★★

"We have a food processing facility in Athi River and tank hygiene is a compliance requirement. Omidrop carries the right documentation and uses food-safe disinfectants. They understand what an industrial food-production environment actually needs — most cleaning companies don't."

Allan K.
Production Manager, Athi River
Common Questions

Frequently Asked Questions About Water Tank Cleaning in Kenya

Kenya's health guidelines recommend cleaning domestic water storage tanks at least every 6 months. Schools, hospitals, and institutions should clean every 3 months. If your water source is a borehole, river intake, or area with known contamination issues, clean more frequently. In practice, most Kenyan households go 12–24 months between cleanings — significantly increasing health risk.
Tank cleaning costs depend on: tank type (plastic, concrete, steel), tank volume (litres), level of contamination or sludge buildup, location (Nairobi costs differ from rural areas), and whether confined-space access is required. We do not publish a fixed price list because a generic quote would be inaccurate for most clients. Contact us at info@omidrop.africa or call +254 745 426 565 with your tank details for a specific, honest quote.
Yes — institutions are our primary focus. We provide full cleaning and disinfection services for boarding schools, universities, clinics, hospitals, and government facilities across Kenya. We issue formal cleaning certificates on completion, which meet Kenya Ministry of Health inspection requirements. Our documentation package is also suitable for institutional procurement and audit records.
Yes. We use food-grade sodium hypochlorite at WHO-recommended concentrations — the same disinfectant used by Kenya's municipal water suppliers. After application, we maintain the correct contact time, then perform a thorough final rinse and check the residual chlorine level before certifying the tank safe for refilling and use. No disinfectant residue remains at unsafe levels.
Yes. Underground tanks require confined-space entry procedures, proper ventilation, sludge extraction pumps, and personal protective equipment — all of which our teams carry as standard. This is what separates professional tank cleaning from informal operators who either decline underground tanks or attempt them unsafely.
A standard household overhead tank (500–2,000 litres) takes 1–3 hours. Underground or large concrete tanks (5,000–50,000+ litres) take 3–8 hours depending on sludge load and tank accessibility. We'll give you a time estimate when quoting and advise on how long to plan for water to be unavailable.
Yes. For confirmed contamination events, post-flood decontamination, or urgent health authority requirements, we offer emergency response to Nairobi and major towns. Same-day cleaning is available for Nairobi when called before midday. Call +254 745 426 565 directly for emergency jobs.
Yes — on every single job. Our cleaning certificate documents the date of service, tank details, process performed, disinfectant used, and post-clean test results. It is specifically formatted to meet Kenya Ministry of Health inspection requirements for schools, hospitals, and institutional facilities.
We serve 50+ towns including Nairobi (all sub-areas), Mombasa, Kisumu, Nakuru, Eldoret, Thika, Kiambu, Ruiru, Machakos, Meru, Nyeri, Embu, Kitale, Kakamega, Kericho, Naivasha, Malindi, Garissa, Nanyuki, Kisii, Bungoma, Busia, Kitui, Narok, Voi, Isiolo, Kajiado, Migori, Homa Bay, Athi River, Kitengela, and more. Call or email us to confirm availability in your specific area.
Absolutely. We manage 3-monthly, 6-monthly, and annual cleaning schedules for estates, schools, hospitals, commercial buildings, and factories across Kenya. Once set up, our system handles reminders and scheduling automatically — you just confirm access on the day. Recurring clients receive priority scheduling and institutional pricing. Contact us to set up a plan.

More questions? Email info@omidrop.africa or call +254 745 426 565 — we respond fast.

Your Tank Is Overdue.
Book a Clean Today.

Professional tank cleaning across Kenya — homes, schools, hospitals, and industries. Certified. Documented. Done right. Serving Nairobi, Mombasa, Kisumu, Nakuru, Eldoret and 45+ towns.

🧼 Book Online Now 📞 +254 745 426 565 💬 WhatsApp
For institutional quotes & formal tenders: info@omidrop.africa — we respond within the hour.
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